Before this commit, The 'icon' field is referenced in the link below https://github.com/odoo/odoo/blob/d8315df6fd733c1331911583f86803bad1718d2d/addons/website/views/website_views.xml#L444 But it has not been defined on the kanban view (Actually it has been removed from the view by this commit: https://github.com/odoo/odoo/commit/69b24e4de17878ea5bc5f3509f0c9aa7c06be20a) And because of this, below error is thrown: TypeError: Cannot read properties of undefined (reading 'value') while clicking the 'Pick a theme' button in Website settings. After this commit, This issue has been resolved. closes odoo/odoo#81578 closes odoo/odoo#82204 X-original-commit: 5c67cac537082698e0cf6d1d82167c96402f6cf3 Signed-off-by: Romain Derie (rde) <rde@odoo.com>